Cobra Island to expose Fred VII as an impostor pretending to be Cobra Commander. The mission is interrupted by the return of the real Cobra Commander, who traps Billy, Zartan, Fred VII, Tyrone, Captain Minh, Raptor, and several others in a landlocked freighter, which he then buries under a volcano. After several months of digging, Billy and Zartan manage to escape, while most of the others die from tainted food. They head for Destro's castle in Scotland, and arrive just as Cobra Commander is attacking. The duo rescue Destro and Chuckles, and the four of them team with the G.I. Joe Ninja Force, eventually battling the Night Creepers and negotiating with Cobra Commander to call off his vendetta against Destro. Billy then goes off on his own, but eventually returns to visit Destro. Unfortunately, his visit is at the same Cobra Commander arrives to brainwash Destro and Zartan back into his service. Billy and Baroness are held captive in the Silent Castle. Storm Shadow goes to rescue his former student, but is captured, and all three are subjected to the Brainwave Scanner. Devil's Due In the years between the end of the Joe/Cobra conflict and its resurgence, Billy shakes off his brainwashing, but is left unhinged. He hides in Scotland, but is tracked down by Spirit and Kamakura, Snake Eyes' apprentice, to help rescue Snake Eyes and Scarlett. After this he joins the G.I. Joe team, training under Beach-Head. When Storm Shadow starts to come out his brainwashing, he contacts Billy for help. Billy in turn alerts Snake Eyes and Kamakura. The trio head to Los Angeles, but find Cobra Commander has beaten them to the punch, and is starting to re-brainwash Storm Shadow. In the fighting, Cobra Commander shoots and wounds Billy. The battle ends with Storm Shadow apparently back in Cobra Commander's service. Billy appears again in the second "Master and Apprentice" mini-series, aiding Storm Shadow against the Red Ninjas. At the end, Billy is tasked by Storm Shadow with watching over the Red Ninjas. Billy appears next during the World War III storyline. He allows himself to be captured, and is brought to his father while Cobra controls Fort Meade. Cobra Commander offers to let Billy join him but Billy refuses. He overpowers Cobra Commander's guards and tries to kill his father. Unfortunately, Cobra Commander fools him with an impostor, and then shoots him in the neck